$ git clone -n https://src.fedoraproject.org/rpms/ghc-IOSpec.git /var/lib/mock/f40-build-776552-128929/root/chroot_tmpdir/scmroot/ghc-IOSpec
Cloning into '/var/lib/mock/f40-build-776552-128929/root/chroot_tmpdir/scmroot/ghc-IOSpec'...
$ git fetch origin 4dcffb7aaceb9f873972ddfb345aa0517c325734:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-IOSpec
 * [new ref]         4dcffb7aaceb9f873972ddfb345aa0517c325734 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4dcffb7 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild